|| Water vapor (H2O) || ~0.40% over full atmosphere, typically 1%-4% at surface ||
Mean atmospheric water vapor
Air is mainly composed of nitrogen, oxygen, and argon, which together constitute the major gases of the atmosphere. The remaining gases are often referred to as trace gases,[1] among which are the greenhouse gases such as water vapor, carbon dioxide, methane, nitrous oxide, and ozone. Filtered air includes trace amounts of many other chemical compounds. Many natural substances may be present in tiny amounts in an unfiltered air sample, including dust, pollen and spores, sea spray, and volcanic ash. Various industrial pollutants also may be present, such as chlorine (elementary or in compounds), fluorine compounds, elemental mercury, and sulfur compounds such as sulfur dioxide [SO2].
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Questions
What is the chemical composition of air?
What is the separable component of nitrogen?
When was krypton discovered?
Is Ammonia both caustic and hazardous, or not caustic and hazardous?
Nitrous Oxide is known as what kind of gas?
vocabulary
Mean atmospheric water vapor
Air is mainly composed of nitrogen, oxygen, and argon, which together constitute the major gases of the atmosphere. The remaining gases are often referred to as trace gases,[1] among which are the greenhouse gases such as water vapor, carbon dioxide, methane, nitrous oxide, and ozone. Filtered air includes trace amounts of many other chemical compounds. Many natural substances may be present in tiny amounts in an unfiltered air sample, including dust, pollen and spores, sea spray, and volcanic ash. Various industrial pollutants also may be present, such as chlorine (elementary or in compounds), fluorine compounds, elemental mercury, and sulfur compounds such as sulfur dioxide [SO2].
links-google,wikipedia,photopedia,bing,ABOUT.COM:
Questions
What is the chemical composition of air?
What is the separable component of nitrogen?
When was krypton discovered?
Is Ammonia both caustic and hazardous, or not caustic and hazardous?
Nitrous Oxide is known as what kind of gas?